Clock for motor cars and other vehicles



July 13 1926. 1,592,677

A. SZENTE v CLOCK FOR MOTOR CARS AND Q'II'IER VEHICLES Filed Ba 4:, 1924 Fi g.\

l .36 1 I v l i 45 I 1 l l v ,32 l g I Patented July 1 3, 1926. v UNITED STATES PATENT. oFFi-ce.

.AUREL SZENTE, F VIENNA, AUSTRIA.

CLOCK non moron cans AND ornnn vnmcrns. Application filed December 4, 1924, Serial No. 753,881,. and in Austria December 10, 1923.

This invention relates to clocks for motor the contact piece 27 extends over a contact cars and other vehicles and consists in a pin 19 of the arm 19. The arm 26 is concl'ock combined with an electro-magnetic nected with the bolt by means of a tenfeeding mechanism; which operates in such sion spring 28 and with the arm 22 by means ee 5 a manner, that the clock-work remains of a projection 29, a screw 31 on arm 22 Wound up and the whole spring force is extending through a slot in said projecstored while the clock is connected with the tion. On the plate 1 an arm 33 is fastened electric current; the stored up force only by means of a screw 32; a leaf spring 34 becomes operative as soon as the current presses against said arm. The spring 34 is I ceases to flow or is switched off. If the clock fastened on the upper face of the armature is shut, off-from current supply for a longer 8. The armature carries a pin projecting time than the stored spring power will last, to therear (Fig. 3) to which is fastened the clock may be used as any other inechanione end of a spiral spring 36 having its other cal clock-work as long as necessary. It may end fixed on a pin 37 whichextends through 76 1 be wound up in the usual way either by hand plates 2 and 3. This spring tends to keepor by an electro-magnetic mechanism. As the armature in the circuit closing position soon as the current is switched in again the shown in Fig. 1 or to bring it into this clock will be operated as an electric clock position, if moved. The current is supplied the spring power being stored up as before. from the battery with which the vehicle is "1 The accompanying drawings show byway provided by means of? a binding post 38 of example an embodiment of the clock accarried by the bolt 39 on plate 1. The curcording to the invention. Fig. 1 illustrates rent flows through plate 1, ratchet wheel 7 the clock removed from the casing in rear and pin 15 and from there if the pin 19' is view. Fig. 2 shows the feeding mechanism in contact with the contact piece 27 to said 80 in a similar view the elements being in ancontact piece. The current then passes other position of their operation. Fig. 3 through a conductor 41 to a coil 42 and is a side view of the clock with a part of through a second coil 43, spring 44 and a the casing and Fig. 4 shows a detail on a clamp 45 on the casing back to the battery. part of the dial. v0 1, 2and 3 designate plates on which the from the plate by means of two insulating winding arbor 4 is journalled, which has an. washers 40. extension passing through an opening 5 in The operation of the clock is the followthe dial 6. A ratchet wheel 7 is rigidly mg: fastened to said axle, whereas the armature If the pin 19 is in the position shown in 35 8 of a horseshoe magnet 9 is pivotally Fig. 1 it closes the circuit by means of the mounted thereon. The armature 8 carries at Contact piece 27 and the horseshoe magnet one end a bolt-18 over which a sleeve 17 is 9 moves the armature to the position illusfitted having an arm 16 which carries a pin tratedjn Fig. 2. At the same time the driv- 15 projecting at right angles from the arm mg pawl pin 15 engages the next tooth of 9B 40 and engaging the ratchet wheel 7. The the ratchet wheel 7 the current being interratchet wheel is connected with the axle rupted between pin 19 and contact piece 13 of the clockspring 14 by means of a gear- 27; the action of the, electro-magnet ceases ing 10, 11 and 12. The other end of the and spring 36 brings back the armature into parallel to arm 16, the arm 16 being pressed turns the ratchet wheel for one tooth in against the ratchet wheel 7 by the action of clockwise direction. This movement is a spring 20. fastened to the bolt 18. The transmitted by means of the gearing 10, 11 plate 1 carries a bolt 21 on which an arm and 12 to the axle 13 of the c ock spring 14 22 is pivotally mounted; a pin 23 on the which is consequently gradually wound up. 1 5

front edge of said arm 22 acting as a detent Pin 19 is returned to the position shown is maintained by means of a tension spring in Fig. 1 and the operation above described 24 in engagement with the ratchet wheel 7 is repeated until the clock spring 14 is comsaid spring being inserted between a bolt pletely wound up. If pin 15 now en ages 25 on plate 1 and the arm 22. A second the next tooth of the ratchet wheel an the 110 arm 26 to which a contact piece 27. is action of the electro-magnet ceases the fastened is pivotally mounted on bolt 21; ratchet wheel under the action of spring 36 The arm 26 of the contact piece is insulated 85 v sleeve 17 carries an arm 19 arranged in the position shown in Fig. 1 the pin 15 then which will engage operated winding arbor;

can only turn as far as the clock spring runs down. It is then wound up again for one tooth breadth of the ratchet wheel by means of the electro-magnet.

Thus the whole s ring power remains stored up while the c ock is connected with the battery and will serve for operating the clock for some time--as a rule 24 to 30 hours --ater the battery has been switched off.

If there is no current supply for a longer time than that the clockwork may be woun up by means of an ordinary watch key the square head 4: on the axle 4.

On the end of the winding arbor 4: which projects from the dial 6 a small hand 46 is provided which is turned round for a certain distance each time the ratchet wheel is stepped forward so that the driver of the car is able to see, whenever he looks at the dishwhether the clock is worked electrically or not. 4

What I claim is:

l. The combination with a clock having a winding mechanism including a manually operated winding arbor; of a ratchet wheel secured on said arbor, an electro-magnet, a spring-retracted armature therefor pivoted on said arbor, a pivoted, spring-urged driving pawl on said armature cooperating with said wheel, a parallel contact arm carried by said pawl and a contact engaged by said arm.

2. The combination with a clock having a winding mechanism including a manually of a ratchet wheel secured on said arbor, an electro-magnet, a spring-retracted armature therefor oivoted on said arbor, a driving pawl for s-ai wheel and a contact arm both mounted at one end of said armature, a contact arranged for en- I gagement by said arm and a detent for said contact arbor, and a leaf as my invention,

wheel mounted adjacent the opposite end of said armature.

3. The combination with a clock having a winding mechanism including a manually operated winding arbor; of a ratchet wheel secured to said arbor, an electro-magnet, an armature therefor pivoted on said arbor, a spring-urged driving pawl for said wheel pivotally mounted on one end of said armature, a contact arm parallel to and movable with said pawl, a pivoted, spring-retracted detent for said wheel adjacent the opposite end of the armature, a pivoted, spring-re ti-acted contact arranged for engagement by said contact arm, and a pin and slot connection between said contact and detent to permit slight independent movement of said contact and thereby efiect a wiping contact with the contact arbor.

e. The combination with a clock h ving a winding mechanism including a manually operated winding arbor; of a ratchet wheel secured to said arbor, an electro-magnet, an armature therefor pivoted on said arbor, a spring-urged driving pawl for said wheel pivotally mounted on one end of said armature, a contact arm parallel to and movable with said pawl, a pivoted, spring-retracted detent for said wheel adjacent the opposite end of the armature, a pivoted, spring-retracted contact arranged for engagement by said contact arm, a pin and slot connection between said contact and detent to permit slight independent movement of said contact and thereby ellect a wiping contact with the spring mounted on the armature.

In testimony that I claim'the foregoing 1 have signed my name.

AUREL SZENTE.

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